Example ODS file from Calc with different left and right headers.
left_right_headers.ods (application/vnd.oasis.opendocument.spreadsheet), 8.33 KB, created by NISZ LibreOffice Team on 2018-11-26 13:31:54 UTC
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Creator: NISZ LibreOffice Team
Created: 2018-11-26 13:31:54 UTC
Size: 8.33 KB

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Attachments on bug 121716: 147043 | 147044 | 147045